Structure and transcription of the Drosophila melanogaster vermilion gene and several mutant alleles
نویسندگان
چکیده
منابع مشابه
the underlying structure of language proficiency and the proficiency level
هدف از انجام این تخقیق بررسی رابطه احتمالی بین سطح مهارت زبان خارجی (foreign language proficiency) و ساختار مهارت زبان خارجی بود. تعداد 314 زبان آموز مونث و مذکر که عمدتا دانشجویان رشته های زبان انگلیسی در سطوح کارشناسی و کارشناسی ارشد بودند در این تحقیق شرکت کردند. از لحاظ سطح مهارت زبان خارجی شرکت کنندگان بسیار با هم متفاوت بودند، (75 نفر سطح پیشرفته، 113 نفر سطح متوسط، 126 سطح مقدماتی). کلا ...
15 صفحه اولStructure and transcription of the singed locus of Drosophila melanogaster.
Developmental and genetic studies of the singed gene of Drosophila melanogaster indicate that the gene has a role in somatic cells during the formation of adult bristles and hairs, and in the female germline during oogenesis. During metamorphosis a single 3.6-kilobase (kb) RNA is made, and this RNA is also present in adults and early embryos. Early embryos and adult females have additional 3.3-...
متن کاملEnzymatic studies with the suppressor of vermilion of Drosophila melanogaster.
UPPRESSION is the complete or partial restoration of the wild-type phenotype by one gene in the presence of another nonallelic mutant gene that alone causes a mutant phenotype. Intragenic “suppressors” have also been reported (CRICK, BARNETT, BRENNER and WATTS-TOBIN 1961; HELINSKI and YANOFSKY 1963) but the term “second site reversion” used by HELINSKI and YANOFSKY seems useful in distinguishin...
متن کاملMolecular analysis of mutations induced in the vermilion gene of Drosophila melanogaster by methyl methanesulfonate.
The nature of DNA sequence changes induced by methyl methanesulfonate (MMS) at the vermilion locus of Drosophila melanogaster was determined after exposure of postmeiotic male germ cell stages. MMS is a carcinogen with strong preference for base nitrogen alkylation (s = 0.86). The spectrum of 40 intralocus mutations was dominated by AT----GC transitions (23%), AT----TA transversions (54%) and d...
متن کاملSplicing of retrotransposon insertions from transcripts of the Drosophila melanogaster vermilion gene in a revertant.
A mutation of the Drosophila melanogaster vermilion (v) gene known as v1 is caused by the insertion of a 412 retrotransposon into the 5' untranslated region of the first exon. Mutants carrying this insertion accumulate a low level of mRNA from which most of the transposon sequences have been eliminated by splicing at cryptic sites within transposon sequences. Here, we demonstrate that a reverta...
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ژورنال
عنوان ژورنال: Molecular and Cellular Biology
سال: 1990
ISSN: 0270-7306,1098-5549
DOI: 10.1128/mcb.10.4.1423-1431.1990